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All Journal Jurnal ADAM : Jurnal Pengabdian Masyarakat
Ziliwu, Mardin Lianus
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Humanities Education Environmental Science Social Sciences

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EKSPERIMEN GELOMBANG BUNYI DENGAN TELEPON KALENG Siregar, Dedes Asriani; Nasution, Febriani Hastini; Situmeang, Kartika; Hutabarat, Jenita Damayanti; Dari, Gustin Suci Wulan; Harahap, Yuli Al Aisyah; Ziliwu, Mardin Lianus
Jurnal ADAM : Jurnal Pengabdian Masyarakat Vol 5 No 1 (2026): Vol. 5 No. 1 Edisi Februari 2026
Publisher : Institut Pendidikan Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37081/adam.v5i1.4557

Abstract

This community service aims to introduce the basic concept of sound waves to elementary school students through a tin can telephone experiment. The activity was carried out using two tin cans connected by a taut string as a medium for sound propagation. Students were asked to take turns speaking and listening through the tin cans to observe how sound propagates. The results of the study showed that this experimental activity increased students’ understanding of the concept of sound propagation, demonstrated by their ability to explain that vibrations in the tin can are transmitted through the string until they are heard in the receiving tin can. In addition, the experimental activity was proven to increase students’ enthusiasm for learning and engagement in science learning. Thus, the tin can telephone can be used as a simple and effective learning medium to introduce the concept of sound waves to elementary school students. Keywords: observation of sound wave results, student activities
Co-Authors Dari, Gustin Suci Wulan Harahap, Yuli Al Aisyah Hutabarat, Jenita Damayanti Nasution, Febriani Hastini Siregar, Dedes Asriani Situmeang, Kartika